nmea

// ConsoleApplication1.cpp : 此檔案包含 'main' 函式。程式會於該處開始執行及結束執行。
//

//#include "pch.h"
#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <string>
using namespace std;



void main()
{
	fstream nmea_new("d:\\nmea_new.txt", ios_base::out);
	fstream file("d:\\nmea_sample.txt", ios_base::in);

	if (!file)
		cout << "smple檔案開啟失敗" << endl;
	else if (!nmea_new)
		cout << "new檔案開啟失敗" << endl;

	else {
		string s;
		string target = "GPGGA";
		int pos = 0;
		while (!file.eof()) {
			file >> s;

			if (s.find(target) != string::npos) {

				nmea_new << s << endl;

				for (int i = 1; s[i] != '*'; i++) {
					cout << s[i];
				}
				cout << ' ' << s[s.find('*') + 1] << s[s.find('*') + 2] << endl;

				int cknum = 0;
				if (s[s.find('*') + 1] >= 'A' && s[s.find('*') + 1] <= 'Z')
					cknum += (s[s.find('*') + 1] - 'A' + 10) * 16;
				else
					cknum += (s[s.find('*') + 1] - '0') * 16;
				if (s[s.find('*') + 2] >= 'A' && s[s.find('*') + 2] <= 'Z')
					cknum += s[s.find('*') + 2] - 'A' + 10;
				else
					cknum += s[s.find('*') + 2] - '0';

				int cksum = 0;
				for (int i = 1; s[i] != '*'; i++) {
					cksum ^= s[i];
				}

				//              cout << "***cknum= " << cknum << endl;
				//              cout << "***cksum= " << cksum << endl;
				if (cksum == cknum)
					cout << "PASS" << endl;
				else
					cout << "WRONG" << endl;

				unsigned int j, cnt = 0, pos = 0;
				if ((j = s.find(',')) != string::npos) {
//					cout << "***j= " << j << endl;
//					cout << "***pos= " << pos << endl;
					cout << "Time : " << s[s.find(',') + 1] << s[s.find(',') + 2] << " : " << s[s.find(',') + 3] << s[s.find(',') + 4] << " : " << s[s.find(',') + 5] << s[s.find(',') + 6] << endl;
					pos = j + 6;
//					cout << "***j= " << j << endl;
//					cout << "***pos= " << pos << endl;
					cout << "緯度 : " << s[s.find(',', pos) + 1] << s[s.find(',', pos) + 2] << ' ' << s[s.find(',', pos) + 3] << s[s.find(',', pos) + 4] << '.' << s[s.find('.') + 1] << s[s.find('.') + 2] << ' ' << s[s.find('.') + 3] << s[s.find('.') + 4];
					pos += 10;
//					cout << "***j= " << j << endl;
//					cout << "***pos= " << pos << endl;
					cout << ' ' << s[s.find(',', pos) + 1] << endl;
					pos += 2;
//					cout << "***j= " << j << endl;
//					cout << "***pos= " << pos << endl;
					cout << "經度 : " << s[s.find(',', pos) + 1] << s[s.find(',', pos) + 2] << s[s.find(',', pos) + 3] << ' ' << s[s.find(',', pos) + 4] << s[s.find(',', pos) + 5] << '.' << s[s.find(',', pos) + 7] << s[s.find(',', pos) + 8] << ' ' << s[s.find(',', pos) + 9] << s[s.find(',', pos) + 10];
					pos += 11;
//					cout << "***j= " << j << endl;
//					cout << "***pos= " << pos << endl;
					cout << ' ' << s[s.find(',', pos) + 1] << endl;
					pos += 2;
//					cout << "***j= " << j << endl;
//					cout << "***pos= " << pos << endl;
				}


			}
		}


		cout << "寫入完畢" << endl;


	}


}